| High Valy Const/Ellensburg LLC | CC-01 | 2009 | Active |
| Hill Family Homes LLC | CC-01 | 2026 | Active |
| Hillemann Homes LLC | CC-01 | 2013 | Active |
| Home Fix Property Solutions | CC-01 | 2026 | Active |
| Hometrexx LLC | CC-01 | 2022 | Active |
| Hopesource | CC-01 | 2006 | Active |
| Huggins Construction LLC | CC-01 | 2026 | Active |
| Interstate Excavating LLC | CC-01 | 2023 | Active |
| J & J Cleaning & Flooring LLC | CC-01 | 2024 | Active |
| J & T Custom Gutters | CC-01 | 2021 | Active |
| Jim's Glass/Contracting Inc | CC-01 | 1971 | Renew by Nov 27, 2026 |
| JL Fine Homebuilders LLC | CC-01 | 2020 | Active |
| John Boitano Construction | CC-01 | 2009 | Active |
| Johnson's Glass & Uphstry LLC | CC-01 | 2017 | Active |
| Josh Voshall Trucking LLC | CC-01 | 2016 | Active |
| JRI Property Preservation LLC | CC-01 | 2016 | Active |
| K & A Custom Homes/Remodle LLC | CC-01 | 2004 | Active |
| Kittitas Valley Constructn LLC | CC-01 | 2020 | Active |
| Kittitas Valley Contrs LLC | CC-01 | 2025 | Active |
| Kkatt LLC | CC-01 | 2017 | Active |
| Knudson Lumber Co | CC-01 | 2024 | Active |
| Lathrop Development Co Inc | CC-01 | 2014 | Active |
| Leroy Construction LLC | CC-01 | 2026 | Active |
| Liddiard Construction LLC | CC-01 | 2021 | Active |
| Locati Construction | CC-01 | 2005 | Active |
| Loewen Greenhse & Lndscpng LLC | CC-01 | 2022 | Active |
| Lopez Construction | CC-01 | 2018 | Active |
| Lowell's Cornerstone Const LLC | CC-01 | 2015 | Active |
| Lumsden Construction | CC-01 | 2011 | Active |
| M R M Construction Inc | CC-01 | 1996 | Active |
| M2 Industrial Inc | CC-01 | 1992 | Active |
| Manastash Ridge Excavation LLC | CC-01 | 2011 | Active |
| Mass X Construction LLC | CC-01 | 2018 | Active |
| McIntosh Excavating LLC | CC-01 | 2021 | Active |
| McIntosh Pole Buildings Inc | CC-01 | 2008 | Renew by Dec 3, 2026 |
| Metcon Services LLC | CC-01 | 2025 | Active |
| Miguel Rodriguez Clean Up LLC | CC-01 | 2022 | Active |
| Mike Bach Drilling Company | CC-01 | 2023 | Active |
| Mike Kraft Construction LLC | CC-01 | 2024 | Active |
| MJR Design LLC | CC-01 | 2011 | Active |
| Moenoa Construction LLC | CC-01 | 2013 | Active |
| Morgan & Son Earthmoving Inc | CC-01 | 1984 | Active |
| Mountain Construction Co LLC | CC-01 | 2020 | Active |
| Mountain River Custm Homes LLC | CC-01 | 2016 | Active |
| Mountain Valley Const LLC | CC-01 | 2021 | Active |
| Mt Stuart Construction LLC | CC-01 | 2025 | Active |
| Negrete Construction LLC | CC-01 | 2022 | Renew by Dec 5, 2026 |
| Nextvision LLC | CC-01 | 2023 | Active |
| Nighthawk General Contr LLC | CC-01 | 2025 | Active |
| North Star Building & Main LLC | CC-01 | 2025 | Active |
| Novo Construction LLC | CC-01 | 2022 | Active |
| NW Luxury Spas | CC-01 | 2026 | Active |
| Oja's Trucking & Exvtn LLC | CC-01 | 2025 | Active |
| Ollie's Concrete LLC | CC-01 | 2024 | Active |
| One Time Const-Drywall LLP | CC-01 | 2018 | Active |
| Pacwest Solar LLC | CC-01 | 2023 | Active |
| Paint The Corners | CC-01 | 2024 | Active |
| Perma Color | CC-01 | 2022 | Active |
| Pinnacle Approach LLC | CC-01 | 2023 | Active |
| Piper Construction LLC | CC-01 | 2024 | Active |
| Platinum Development, LLC | CC-01 | 2024 | Active |
| Platinum Hot Tubs & Yrdwrx LLC | CC-01 | 2022 | Active |
| PNW Legacy Builders LLC | CC-01 | 2025 | Active |
| Powers Contracting LLC | CC-01 | 2018 | Active |
| Pro Sweep NW LLC | CC-01 | 2023 | Active |
| Proper Homes LLC | CC-01 | 2016 | Active |
| Prosite Pest Control | CC-01 | 2013 | Active |
| Prosite Services | CC-01 | 2022 | Active |
| R H Nelson Construction LLC | CC-01 | 2021 | Active |
| Raley LLC | CC-01 | 2026 | Active |
| Reecer Creek Excavating LLC | CC-01 | 1996 | Active |
| Rex LLC | CC-01 | 2017 | Active |
| RFS Construction | CC-01 | 2014 | Active |
| Richardson Restrn & Cncrt LLC | CC-01 | 2022 | Active |
| Ridge Creek Homes LLC | CC-01 | 2026 | Active |
| Ridgeline Solutions LLC | CC-01 | 2021 | Active |
| Rimrock Landscapes LLC | CC-01 | 2022 | Active |
| River Ridge PRP Maint/Rpr LLC | CC-01 | 2022 | Active |
| RJ Remodel Construction LLC | CC-01 | 2026 | Active |
| Rock & Roll Drywall 509 LLC | CC-01 | 2026 | Active |
| Rockin R Home Solutions LLC | CC-01 | 2026 | Active |
| Rocking T LLC | CC-01 | 2026 | Active |
| RockRite LLC | CC-01 | 2017 | Active |
| RT Services | CC-01 | 2023 | Active |
| Ruach Construction | CC-01 | 2023 | Active |
| Sala's Drain/Sewer CLNG Inc | CC-01 | 2013 | Active |
| Schademan Construction Inc | CC-01 | 1982 | Active |
| Scheid Construction | CC-01 | 2025 | Active |
| Schock Construction SRVS LLC | CC-01 | 2022 | Active |
| Secure Plumbing & Htg Serv LLC | CC-01 | 2020 | Active |
| SH Construction Inc | CC-01 | 2006 | Active |
| Siddell Custom Cnstrctn LLC | CC-01 | 2021 | Active |
| Sivak Construction | CC-01 | 2014 | Active |
| Sky Valley Craftsman Sltns LLC | CC-01 | 2026 | Active |
| Smith Excavating Inc | CC-01 | 1995 | Active |
| Smyth Carpentry LLC | CC-01 | 2025 | Active |
| Sri-Rochlin Const SVCS JV LLC | CC-01 | 2017 | Active |
| St. Hilaire Remodeling LLC | CC-01 | 2020 | Active |
| Stalder Interests Inc | CC-01 | 2023 | Active |
| SW Custom Home Finishes LLC | CC-01 | 2025 | Active |